Fiber container



Dec. 28, 1943. E. E, BA ER ET AL 2,338,019

FIBER CONTAINER Filed April 1, 1941 2 She'ehs-Sheet 2 Patented Dec. 28,1943 FIBER CONTAINER Edward E. Baker and Carla C. Conway. Jr., New

York, N. Y., asslgnors to Continental Can Company, Inc., New york, N.Y., a corporation of l lew York Application April 1, 1941. Serial No.386,362

6 Claims.

The invention relates to new and useful improvements in fiber containersfor liquid products.

An object of'the invention is to provide a container for liquid productswhich is made of fibrous material and which shall be strong so as towithstand rough handling without collapsing, and wherein the seamsjoining the end members to-the body are confined within the limits ofthe maximum transverse section of ,the body, and wherein the outerlapping portions of the end members terminate so that they are coveredand protected by projecting portions of the body wall.

-,A further object of the invention is to provide a container of theabove type wherein the top end member is substantially free fromdepressions and ledges in and around which dust and dirt may lodge. I v

A still further object of the invention is to provide a container of theabove type wherein the top end member is composed of inner and outerplies scored and secured together, and to the container body, so that-acorner portion of the top epd member may be lifted and a pouring openingformed, said score lines being disposed so as to provide a pouring lipfor the pouring opening, which lip is covered by the outer ply of theend member.

These and other objects will in part be obvious and will in part behereinafter more fully disclosed.

In the. drawings which show by way of'illustration one embodiment of theinvention- Figure 1 is a perspective view of a fiber container embodyingthe improvements, said container being sealed and ready for handlingwith the product therein;

Fig. 2 is a perspective view of the top portion of the container shownin Figure 1, with the corner portion lifted so as to provide a pouringopening;

Fig. 3 is a plan view of the top of the container showing in brokenlines the scoring of the outer and inner plies ofthe top closure end sothat the comer portion can be lifted to provide a pouring opening;

Fig. 4 is a sectional view-on tne line 4-4 of Figure 3, and

Fig. 5 is a sectional view through the bottom end portion of thecontainer.

The invention is directed to a container of fibrous material which isespecially adapted for liquid products. As shown in the drawings, thecontainer includes a tubular body portion which of fibrous material.

cated' at 2 and are secured together by a suitable liquid-proof cement.The side walls of the body portion are formed after the side edges havebeen joined so that they taper inwardly asindicated at 3, and are thenbent outwardly'as' indicated at I, which provldesa horizontal seatingflange for the end members. The tapering in of the body wall and thebending out of the seating flange is doneby die-shaping the fibrousmaterial constituting the body wall. This provides'seating flanges whichare continuous all the way around the top and bottom ends of the bodywall. The lower end of the body portion is closed by a bottom endclosure member 5 made Said member is provided with a recess 6 whichextends into the open end of the body member. This bottom end closuremember extends outwardly at 1 across the lower face of the seatingflange 4, and it is then bentupwardly at 8 and inwardly at 9 until it isbrought into contact, with the opposite face of the seating flange l.The body wall is tapered inwardly at 3, as has been noted, and thispermits of the folding of this edge portion 9 fiat against the upperface of the seating flange and with the raw edge of said turned-backedge portion well concealed and protected by the projecting portions ofthe body wall and end member. The bottomend closure member 5 is securedto the seating flange by a suitable liquidproof cement, so that a veryfirm and strong tainer end for closing the opening. After the containeris filled and this plug inserted and expanded, hot wax may be used forsealing the joint between the plug and the wall of the closure end.

The top end of the container consists of an inner ply is of fibrousmaterial and an outer ply I 4 of fibrous material. The inner ply extendsacrossithe seating flange 4 at the top end of the body wall and is bentdownwardly at l5, and thence inwardly at it beneath the seating flange4. Said inwardly bent portion It extends well under the flange andsubstantially to the wall of the body. The tapering of the body wall asindicated at 3 permits this folding of the edge portion of the endmember underneath the seating flange so that the edge will be wellconcealed and protected by the projecting portions 01' the body wall.This inner ply is scored along the line a, a and also along the line b,b. These lines intersect at the point c. This score line is parallelwith the adjacent sides of the body wall and is located along the innerside of the seating flange 4 so that when the inner ply is rupturedalong the score line and lifted, a pouring opening will be provided atthe corner of the container, and the pouring lip over which the liquidflows will be the outer face of this inner ply I3 which is left Joinedto the seating flange.

The outer ply I4 extends all the way across the inner ply in bothdirections and is curved downwardly as indicated at II. All the wayaround the container end, this outer ply is also curved inwardly asindicated at I8, except in the region where the pouring takes place,that is, opposite the score line indicated by the lines a, a and b, b.The portion KB of the outer ply extends well in toward the wall of thebody portion and will be secured to the outer ply by a suitableadhesive. The folded down portion ii in the region where the score linereferred to is located, terminates at iii and throughout this region ofthe score line the upper ply is not cemented to the under ply. The upperply is also scored along the line a, b to form a hinge line 2il. Theupper and lower plies are prefer ably stapled together by a staple 2 iWhen it is desired to open the container, the corner portion adjacentthe point is pressed upwardly and this will lift the upper ply, said plyturning on the hinge 20. As this upper ply is lifted, the scored line inthe lower ply Will start rupturing at the point e and will continue torupture along lines parallel with the adjacent sides of the body wall asclearly indicated in Figure 2 of the drawings. This forms a pouringopening. The pouring lip associated with the opening is the outer faceof the inner ply, and this is well covered by the outer ply until theouter ply is lifted and the inner ply ruptured along the score line.This prevents any dust or dirt from collecting on the pouring lip.

It is sometimes desired to hang the container on a supporting member,and the outer ply is shown as provided with a flap "which is normallyhoused in the recess 23. Said flap may be raised to the position shownin Figure 2. The flap has an opening 24 therethrough which serves as ameans whereby the container may be attached to a supporting member andsuspended therefrom.

It will be noted from the above description that the upper face of thetop closure member is free from depressions and ledges, except ofcourse, in the region of the flap. Being smooth and substantiallyhorizontal, dust and dirt is not likely to collect and become fixedthereto so as to produce an unsanitary condition. The edges of the endmembers are well concealed and protected by the projecting portions ofthe body wall and the end members themselves. This makes a very illstrong and durable seam which is not likely to be torn open during thehandling of the container. The forming of a horizontal seating flangeand the folding of the end members about the same, also produces a verystrong and durable seam structure which reinforces the body wall andprevents the same from collapsing during handling.

While the particular manner of forming the pouring opening described indetail has advan tages in connection with the seam structure described,it will be understood that from certain aspects of the invention, otherways of providing a pouring opening may be utilized without departingfrom the spirit of the invention as set forth in the appended claims.While it is desirable to form the filling opening in the bottom endmemberand close it by a friction plug, it will be understood that thefilling opening may be provided at other portions of the container andclosed by other means than a friction plug, without departing from thespirit of the invention as set forth in the appended claims.

Having thus described the invention, what we claim as new and desire tosecure by Letters Patent is:

1. A container for liquid products comprising a body of fibrousmaterial, the body wall adja-- cent each end thereof being taperedinwardly and thence bent outwardly to provide substantially horizontalend seating flanges extending all the way around the body andterminating in an outer edge disposed substantially in alignment withthe body wall, and an end member for closing the top end of said body,said end member consisting of an upper and a lower ply of fibrousmaterial. said lower ply resting on said seating dance and having itsedge portion extended and folded back underneath the flange and securedthereto all the way around the seating flange,

said upper ply being extended and folded back underneath the seatingflange and secured to the folded back portion of the under ply all theway around, except in the region of one corner and the portions adjacentthereto, in said region the edge portion of said upper ply terminates atthe fold in the under ply and is free from attachment thereto in theregion directly above the seating flange, said under ply being scoredalong lines extending from the corner along the adjacent sides, saidscore lines being disposed at the inner portion of the seating flange sothat the corner portion may be lifted and theinner ply ruptured alongthe scored lines for forming a pouring opening.

2. A container for liquid product comprising a body of fibrous material,the body wall adjacent each end thereof being tapered inwardly andthence bent outwardly to provide substantially horizontal and seatingflanges extending all the way around the body and terminating in anouter edge disposed substantially in alignment with the body wall, andan end member for closing the top end of said body, said end memberconsisting of an upper and a lower ply oi fibrous material, said lowerply resting on said seating flange and having its edge portion extendedand folded backunderneath the flange and secured thereto all the wayaround the seating flange, said upper ply being extended and i'oldedback underneath the seating flange and secured to the folded backportion or the under ply all the way around, except in the region of onecorner and the portions adjacent thereto, in said region the edgeportion of aid upper ply terminates at the fold in the under ply and isfree from attachment thereto in the region directly above the seatingflange, said under ply being scored along lines extending from thecorner along the adjacent sides, said score lines being disposed at. theinner portion of the seating flange so that the corner portion may belifted and the inner ply ruptured along the scored lines for forming apouring opening, said upper ply being scored along a line at rightangles to a diagonal line through the pouring corner for providing ahinge line on which the corner portion swings when lifted.

3. A container for liquid products comprising a body of fibrousmaterial, the body wall adjacent each end thereof being tapered inwardlyand thence bent outwardly to provide substantially horizontal endseating flanges extending all the way around the body and terminating inan outer edge disposed substantially in alignment with the body wall, anend member for closing the top end of said body, said end memberconsisting of an upper and a lower ply of fibrous material, said lowerply resting on said seating flange and having its edge portion extendedand folded back underneath the flange and secured thereto all the wayaround the seating flange, said upper ply being extended and folded backunderneath the seating flange and secured to the folded back portion ofthe under ply all'the way around, except in the region of one corner andthe portions adjacent thereto, in said region the edge portion of saidupper ply terminates at the fold in the under ply and is free fromattachment thereto in the region directly above the seating flange, saidunder ply being scored along lines extending from the corner along theadjacent sides, said score lines being disposed at the inner portion ofthe seating flange so that .the corner portion may be lifted and theinner ply rupturedalong the scored lines for forming a pouring opening,said upper ply being scored along a line at right angles to adiagonal-line through the pouring corner for providing a hinge line onwhich the corner portion wings when lifted, and a staple joining theupper' and the lower ply at the corner immediately inside of the scorelines. a I

4. A container for liquid products comprising a body of fibrousmaterial, the body wall adjacent each end thereof being tapered inwardlyand thence bent outwardly to provide substantially horizontal endseating flanges extending all the way around the body and terminating inan outer edge disposed substantially in alignment with the body wall,end members or flbrou material for closing the ends of said body. saidend mamhere being extended across the seating flanges,

with which they are associated and folded back onto and secured to theopposite faceof the flange thus forming a substantially horizontalprojecting reinforcing member for preventing collapsing of the bodywall, said end member for closing the top of the body consisting ofupper and lower plies, the lower ply being scored along lines adjacentone of the corner for rupturing to form a pouring opening and said upperply being scored to form a hinge line permitting the upper ply to belifted for'rupturing the lower ply to form a pouring opening, and astaple securing the plies together adjacent the corner which is to belifted.

5. A container for liquid products comprising a body of fibrousmaterial, the body wall adjacent each end thereof being tapered inwardlyand thence bent outwardly to provide substantially horizontal endseating flanges extending all the way around the body and terminating inan outer edge disposed substantially inalignment with the body wall, andend members of fibrous material for closing the ends of said body, saidend members being extended across the outer face of the seating flangeswith which they are associated and folded back onto and secured to theopposite face of the flange where they are concealed from view andprotected, one of said end members having score lines paralleling onecorner and adjacent side portions and disposed inside of and adjacentthe flange on the body wall, the other end member having a filling open-I ing and a closure plug therefor.

6. A container for liquid products comprising a body of fibrousmaterial, the body wall adjacent each end thereof being tapered inwardlyand thence bent outwardly to provide substantially horizontal endseating flanges extending all the way around the body and terminating inan outer edge disposed substantiallyin alignment with the body wall, andan end member for closing the top end of the body consisting of an upperand a lower ply of fibrous material, the lower ply resting on saidseating flange and having its'edge extended and folded back underneaththe flange and secured thereto all the way around the seating flange,said upper ply being extended so as to cover the region above theseating flange and secured to the under ply all the way around except inth region of one corner and the portions adjacent thereto, saicLunderply being scored at said corner and in the por-

